[ Science ]
The layer that protects the earth from UV radiations:
A. Nitrogen
B. Ozone layer
C. Methane
D. Magnesium oxide
Select your answer:
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Grammar › ViewAt night, my mother ______ (tell) me stories.
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She (have, not) ___________ this much fun since she __________ was a kid.
A. haven’t has/ is
B. hasn’t had/ was
C. didn’t have/ is
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